minor
Merge branch 'master' of https://github.com/mw-ding/MigrationProcess.git
provide readLine() for transactionfileinputstream
copy file
Merge branch 'huanchen'
with new test code
update the task id assignment
Merge branch 'master' of https://github.com/mw-ding/MigrationProcess.git
debug output control
commin
Merge branch 'master' of https://github.com/mw-ding/MigrationProcess.git

Conflicts:
	src/org/cmu/ds2013s/SlaveManager.java
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